package net.minecraft.entity.monster;

import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityCreature;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.util.BlockPos;
import net.minecraft.util.DamageSource;
import net.minecraft.util.MathHelper;
import net.minecraft.world.EnumDifficulty;
import net.minecraft.world.EnumSkyBlock;
import net.minecraft.world.World;

public abstract class EntityMob extends EntityCreature implements IMob {
	public EntityMob(World worldIn) {
		super(worldIn);
		this.experienceValue = 5;
	}

	/**
	 * Called frequently so the entity can update its state every tick as required.
	 * For example, zombies and skeletons use this to react to sunlight and start to
	 * burn.
	 */
	public void onLivingUpdate() {
		this.updateArmSwingProgress();
		float f = this.getBrightness(1.0F);

		if (f > 0.5F) {
			this.entityAge += 2;
		}

		super.onLivingUpdate();
	}

	/**
	 * Called to update the entity's position/logic.
	 */
	public void onUpdate() {
		super.onUpdate();

		if (!this.worldObj.isRemote && this.worldObj.getDifficulty() == EnumDifficulty.PEACEFUL) {
			this.setDead();
		}
	}

	protected String getSwimSound() {
		return "game.hostile.swim";
	}

	protected String getSplashSound() {
		return "game.hostile.swim.splash";
	}

	/**
	 * Called when the entity is attacked.
	 */
	public boolean attackEntityFrom(DamageSource source, float amount) {
		if (this.isEntityInvulnerable(source)) {
			return false;
		} else if (super.attackEntityFrom(source, amount)) {
			Entity entity = source.getEntity();
			return this.riddenByEntity != entity && this.ridingEntity != entity ? true : true;
		} else {
			return false;
		}
	}

	/**
	 * Returns the sound this mob makes when it is hurt.
	 */
	protected String getHurtSound() {
		return "game.hostile.hurt";
	}

	/**
	 * Returns the sound this mob makes on death.
	 */
	protected String getDeathSound() {
		return "game.hostile.die";
	}

	protected String getFallSoundString(int damageValue) {
		return damageValue > 4 ? "game.hostile.hurt.fall.big" : "game.hostile.hurt.fall.small";
	}

	public boolean attackEntityAsMob(Entity entityIn) {
		float f = (float) this.getEntityAttribute(SharedMonsterAttributes.attackDamage).getAttributeValue();
		int i = 0;

		if (entityIn instanceof EntityLivingBase) {
			f += EnchantmentHelper.func_152377_a(this.getHeldItem(),
					((EntityLivingBase) entityIn).getCreatureAttribute());
			i += EnchantmentHelper.getKnockbackModifier(this);
		}

		boolean flag = entityIn.attackEntityFrom(DamageSource.causeMobDamage(this), f);

		if (flag) {
			if (i > 0) {
				entityIn.addVelocity(
						(double) (-MathHelper.sin(this.rotationYaw * (float) Math.PI / 180.0F) * (float) i * 0.5F),
						0.1D,
						(double) (MathHelper.cos(this.rotationYaw * (float) Math.PI / 180.0F) * (float) i * 0.5F));
				this.motionX *= 0.6D;
				this.motionZ *= 0.6D;
			}

			int j = EnchantmentHelper.getFireAspectModifier(this);

			if (j > 0) {
				entityIn.setFire(j * 4);
			}

			this.applyEnchantments(this, entityIn);
		}

		return flag;
	}

	public float getBlockPathWeight(BlockPos pos) {
		return 0.5F - this.worldObj.getLightBrightness(pos);
	}

	/**
	 * Checks to make sure the light is not too bright where the mob is spawning
	 */
	protected boolean isValidLightLevel() {
		BlockPos blockpos = new BlockPos(this.posX, this.getEntityBoundingBox().minY, this.posZ);

		if (this.worldObj.getLightFor(EnumSkyBlock.SKY, blockpos) > this.rand.nextInt(32)) {
			return false;
		} else {
			int i = this.worldObj.getLightFromNeighbors(blockpos);

			if (this.worldObj.isThundering()) {
				int j = this.worldObj.getSkylightSubtracted();
				this.worldObj.setSkylightSubtracted(10);
				i = this.worldObj.getLightFromNeighbors(blockpos);
				this.worldObj.setSkylightSubtracted(j);
			}

			return i <= this.rand.nextInt(8);
		}
	}

	/**
	 * Checks if the entity's current position is a valid location to spawn this
	 * entity.
	 */
	public boolean getCanSpawnHere() {
		return this.worldObj.getDifficulty() != EnumDifficulty.PEACEFUL && this.isValidLightLevel()
				&& super.getCanSpawnHere();
	}

	protected void applyEntityAttributes() {
		super.applyEntityAttributes();
		this.getAttributeMap().registerAttribute(SharedMonsterAttributes.attackDamage);
	}

	/**
	 * Entity won't drop items or experience points if this returns false
	 */
	protected boolean canDropLoot() {
		return true;
	}
}
